James



. m 1 Tm A MM nu J m R (No Model.)

Patented June 19, 1883.

ATTORNEYS.

N, PETERS. Phola-Lnhngrapher. Washingim u r.

pinion, X, on the driving-shaft. The slide T is made to turn it by the fri cti on-disks K, which UNITED STATES JAMES C.

SMITH, OF THE DALLES, OREGON.

DRlLLlNG-MACHINE SPECIFICATION forming part of Letters Application filed July To It whom it may concern.-

3e it known that 1, JAMES 0. SMITH, of The Dalles, in the county of W'a-sco and State of Oregon, have invented a new and Improved Drilling-Machine, of which the following is a full, clear, and exact description.

My invention consists of an improved handpower drilling-machine contrived for use as abench or ratchet drill, and arranged for shifting the drill for boring in different positions, and also contrived with respect to the slide and thefecd mechanisms in. simple and efficient arrangements, as hereinafter fully described.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a sectional elevation of my improved drilling-inaehine, taken 011 the line a m of Fig. 3. Fig. 2 is a sectional elevation taken 011 the line y y of Fig. 1, and Fig. 3 is a horizontal section on the line 2 z, Fig. 2.

A represents a strong vertical support for the machine, to be fastened overhead or on any suitable foundation by the bracket B, said support being cylindrical, and h ayin g theslideway 0, attached by strong clips D, allowing it to shift around the support A to set the 1na--- chine in different posit-ions, and seeuringit by binding-screws E. To this slidewaythevertical frame F, with horizontal extension G, is attached so as to slide up and down freely, for which it is provided with a feed-screw, H, which works in a screw-tapped hole in bracket I, rigidlyattached to the guideway O.

The feed-screw has a driving-wheel, J, which are tightened more or less, according to whether it is desired to feed heavily or lightly, bythe thumb-nut L, and a crank, M, is applied to the ,top of the screw for raising and setting the drill to begin with. The wheel J for turning the feed-screw is geared with the main drivingshaft N by the pinion O, shaft P, worm-wheel Q, and the worm R on said shaft N.

The driving-shaftNis arranged horizontally in the horizontal part G of the frame, and works through the vertical arm S of a slide, T, carrying the drill-chuck U, and a wheel \V, attached to said chuck for turningit by a bevel- Patent No. 279,834, dated June 19, 1883,

.35, 1882. (No model.)

shifts along the frame G, to be fastened at any point between the ends by a binding-screw, and the bevel-pinion X slides along the shaft with it, being kept in position by wheel V and arm S. The end a of the driving -shaft is squared for the application of a hand-crank for turning it, and said shaft is also geared with another crank-shalt, I), by a wheel, (I, and a pinion, c, for reducing the motion for large drills, and the crank f is connected with it by a ratchet, g, and pawl, so as to work the drill thereby in places where the crank cannot be turned entirely around.

By the arrangement of the vertical frame on the slideway and the driving-shaft on the horizontal. frame, long bearings are obtained for substantial support, and at the same time the driving-shaft is located low down, where handpower can be very conveniently applied.

The vertical 'l'ramehas the bevel-slides a. at the back for workingon the bevel-edges of the slideway O, and it also. has bevelslides I) at the front for working on the bevel-edges of the front of thelnracket T, by which substantial support on the slideway is secured, and a cl eat, 1', is attached to the front of the bracket to overlap the front side of the frame F for additional security.

To be used as a ratchet-drill, the support A may be applied with the bracket B, as reprcsented in the full lines in the drawings, and said support is speciallycontrived for use in that arrangement to enable the machine to ,be placed between the hub and inside of the rim of a pulley to bore for the set-screw without boring through the rim of the wheel, as is commonly done.

To be used in an upright position, the sup port may be shifted with respect to the machine to-thc position represented in dotted lines, in which case the braek et B may be bolted to any support to hold the machine upright.

I propose to dispense with the horizontal frame G in some cases, and to locate the drillchuck V directly under the feed-shaft H for Vertical drilling.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination, in a drillingmachine, of the vertical cylindrical support A, vertical slideway C, mounted thereon adjustably I fitted to the bevel-edges of the slideway and around it, vertical frame F, arranged on said slidcway, and the horizontal frame G, the feed mechanism being arranged on the vertical. frame and the drill mechanism on the horizontal frame, substantially as described.

2. The driving-shaft N, drill-slide T, chuck. U, wheel \V, and pinion X, combined and arranged with the frames F G, slideway (l, and feed-screw H, substantially as described.

3. The driving-shaft N, worm P, wormwheel Q, shaft P, pinion 0, wheel J, feedscrew H, and the fricti oil-clutch, combined and arranged with the frames F and G and the drill-chuck and its driving-gear, substantially as described.

4. The combination, with the support A and the slideway (J, provided with the bracket 1, and fitted to turn on the said support, of the frame F, provided with the slides a" b,

bracket, and the cleat-f, secured to the said bracket, substantially as and for the purpose set forth.

5. The combination, with the feedscrew H, of driving-wheel J, mounted loosely on the upper end of the feed-screw, the friction-disks K K on opposite sides of the said wheel, and the nut L on the end of the said feed-screw, substantially as herein shown and described, whereby the feed is regulated by tightening the nut, as set forth.

6. The combination, with the frames F G, of the support A, having bracket 13, and being reversible with respect to said frames, substantially as described.

JAMES CURTIS SMITH.

\Vitnesses:

S. MALTERNER, 'W. S. MYERs. 

